Gas-burner.



Patented Jan. 15, 1918.

[N V EN TOR. m

W. B. KING.

GAS BURNER.

APPLICATION FILED on. 9. 191a.

WITNEW I resacoag STAE ATNT Q ILLIAM Kine, orleosroiv, MASSAC USETTS.

- GAS-BURNER.

Specification of Letters Patent. P'atgflffl Jan; 15,1913,

Application filed Qctobert), 1913. Serial No. 794,510.

ToaZl whomit may concern; a v a a lie it known that I, T| +:T]'LLL\)[=B. Kine, a citizen of the United States, residing at Boston, in thecounty of Suffolk and State of Massachusetts, have invented certain newand useful Improvements in Gas l3urners, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like reference characters in the drawings indicating likeparts in the several figures.

This invention relates to incandescent gas burners and particularly toburner-caps such as are usually soldwith the mantle.

There has been upon-the market tor-sonic years a burner having apilot-tube which is centrally located within the Bunsentube. This burnerrequires, however, a mantle with a special burnercap having a centralopening through which the central pilottube can pass in order that the,pilot-flame from the pilottube may ignite the gas to render the mantleincandescent when the special key on the burner is turned to allow gasto enter the Bunseintube, Such a man tle issknown in the tradeas a.pilot-gauze mantle and can not be used on burners not having a centralpilot-tube because the Bun sen flame isliable to flash back through thecentral opening. Cohsider'ableconfw sion hastherefore resulted among themantle-using public, owing to the non-interchangeability of the twotypes of =burnercaps supplied with the mantles. V

The ob 'ect of the present invention is to provide, for sale withincandescent gas man tles, a burner-cap that can be installed and usedupon either type ofburner without any special thought or manipulationupon the part of the user. For accomplishing this obj ect,'my inventionconsists broadly in providing means for preventing-the flow ofcombustible mixture through the opening in the deflector in theburner-cap of a pilotauze mantle so that it may be used on a regularburner having no pilot-tube and in constructing and arranging said meansso as to allow the pilot-tube of an internal pilottube burner to passthrough the opening in the deflector if the burner-cap, with itsattached mantle, is used on a burner having such a pilot-tube.

In carrymg out my invention in its preferred form I provide the openingin the burner-cap with a closure of heat resisting but puncturablematerial which will remain intact as long as the cap and mantle are usedupon a burner having no pilot-tube, but which will be liiui ctured bythe pilot-tube during the simple and necessary act of plac ing the capand mantle upon a burner having such a pilot-tube.

In order that the invention may be more fully understood, reference ishereby made to the accompanying drawings, of which- Figure 1 is a sideelevation, partly in section, of the present style of mantle fitted withthe burner-cap having the central opening, with my improvement appliedthereto and punctured by its positioning uponthe central pilottubeburner, only the upper portion of which is shown, and

i Fig. 2 is a similar view ofthe same 1na.n tle and shows the closureabout to be punc tured by bringing the burner-capinto its properlocation on the, central pilot-tube burner. a a v The mantle 7 andburner-cap S are sold together as single article of commerce, the twobeing held in fixedrelationship by any suitable means, as by the wire 9,as is well. known by users of mantles. Intheburnercap the central partof the wire-gauze 10 is provided witha deflector which consists of awasher 11 having a central opening through which a small tube 12 passesdownward into the mixing chamber 13. The tube 12 is sea cured to thewasher 11 and gauze 10 by being headed over on the washer 11 above theslight shoulder 14. The tube 12 is enlarged somewhat at its lower end inorder more easily to engage the central pilot-tube 15 when the burnencapis placed in position on the top of the mixing chamber tube 18. When inposition, the top of the pilot-tube 15 is about flush with the upper endof the tube 12, as shown in Fig. 1. The above is all well-known in theart and is herede scribed in order that the application of my inventionwill be better understood,

A broad feature of my invention consists in closing the tube 12 withaheat resisting but puncturablc material which will remain inthe burnerand usually even without his knowledge that such an operation 18 takingplace. The invention further consists in using a material which will notclog the burner or pilot-tube in any way.

In its preferred form, the invention consists in closing the lower endof the tube 12 with a single layer of aluminum foil 17, which admirablymeets all requirements of the case. This foil is out large enough to befolded and crimped upon the outside of the tube 12, as seenin Fig. 2, tosecure it in position. When this foil extends a substantial distanceupon the outside of the tube 12, there is no danger of gas entering thetube (when the mantle is used on a burner having no central pilot-tube)and causing a series of miniature explosions even if the crimping is notgas tight. This is because the gas pressure is comparatively low in themixing chamber and a free outlet exists for the gas to pass through thegauze in the regular way.

It is tobe understood that I do not limit myself to the use of aluminumfoil placed as described but foils of other metals may be used as wellas any other suitable substance and the foil or substance may beotherwise located relative to the burner-cap and it may be secured inany suitable manner without departing from the spirit of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, 'is

1. A burner-cap having a gauze and a de flector, an opening in thedeflector and a closure of heat resisting but easily puncturablematerial for said opening.

2. A burner-cap having a gauze and a dcflector, an opening in thedeflector and a closure of aluminum foil for said opening.

3. A burner-cap, for use on burners either with or without a centralpilot-tube, having a gauze, a deflector on the gauze, a tube securingthe deflector to the gauze, a closure of heat resisting material for thetube to permit the use of the cap on burners of the second type,saidclosure being capable of being punctured by the pilot-tube of burners ofthe first type by the positioning of the cap on said burner.

at. A burner-cap having a gauze, a washer in the center of the gauze, atube securing the washer to the gauze,and a closure for the tubeconsisting of a heat resisting but easily puncturable material securedto the tube by crimping and folding.

5. A burner-cap having a gauze and a deflector, an opening in thedeflector and a closure for said opening consisting of easilypuncturable material somewhat loosely secured to the deflector andforming ajoint slightly open inplaces.

6. A burner-cap having a gauze and a deflector, an opening in thedeflector and a closure for the opening consisting of easily puncturablematerial, said closure being arranged below the gauze so as to belocated in the stream of cool combustible mixture when in use on aburner.

7. A burner-cap having a gauze and a deflector, an opening in thedeflector-Linda closure of puncturable material for the opening, aburner having an internal pilot-tube for puncturing said closure, saidmaterial being of such a nature that it will not clog the pilot-tube.

8. A burnercap having, in combination, a gauze, a deflector, an openingin the deflector and means for preventing the How of coinbustiblemixture through the opening in the deflector, said means beingcons-tructed'and arranged to allow the pilot-tube ofan internalpilottube burner topass through the opening "in the deflector when thecap is placed on'a burner having such a pilot-tube.

9. A burner-cap, for use'on burners either with or without an internal1')ilot-tube,having a gauze, .a deflector, an opening in the deflectorand means for preventing the flow ofcombustible mixture through theopening in the deflector to permit the use of the cap on a burner of thesecond type, said means being constructed and arranged to allow thepilot-tube of a burner of the first type to pass through the opening inthe deflector when the cap is placed on a burner of the first type.

'In testimony whereof I have name to this specification in the twosubscribing witnesses.

WVILLIAM B. KING.

signed my presence of Witnesses:

JAMES O. WRiGHT, EVERETT W. VARNEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

